Dual magazine control



Feb. 17, 1942.

M. T. GOETZ DUAL MAGAZINE CONTROL 2 Shets-Sheet 1 Filed 001;. 4, 1940 INVENTOR MAURUS T. GOETZ ORNEY.

Feb. 17, 1942..

M. T. GOETZ DUAL MAGAZINE CONTROL File d Oct. 4, 1940 2 Sheets-Sheet 2 I97 I fiz INVENTOR. MAURUS T. GOETZ A ORNEY.

Patented Feb. 17, 1942 ATENT FFICE 2,273,032 DUAL MAGAZINE CONTROL Maurus T. Goetz, Chicago, 11]., assignor, by me'sne assignments, to Teletypesetter Corporation, a

corporation of Delaware Application October 4, 1940, Serial No. 359,757

12 Claims.

This invention relates to linecasting and composing machines and particularly to the control of power operated magazine shift mechanism of such machines by a stored signal responsive apparatus'.

Certain commercially available linecasting and composing machines are provided with mechanism operated by a power driven cam for establishing co-operation between the set of matrix release reeds and a pair of matrix storage magazines alternately, the control of the application of power to the cam being effected by a single key lever which is operablein a single direction to transfer the co-operation from an instant condition to the other condition without indication by or at the key lever of what condition pravails before or after the operation thereof,

An object of the invention is to provide an automatic control unit for a linecasting and composing machine responsive to stored signals having a simple electrical system for operating the single lever which controls the magazine shift mechanism of the linecasting and composing machine.

The invention features mechanical means for interrupting the presentation of stored signals upon the presentation and sensing of a magazine shift control signal for an interval to permit the matrix releasing mechanism to assume normal condition before the magazine shift operation occurs. a

The invention also features electrical means for arresting the automatic control unit during the shifting operation to postpone further matrix releasing control selection until the desired relationship of release reeds to magazine has been established.

The invention further features means operated by the cam which effects the shift in the relationship of the release reeds to the magazine to transfer the control of the electrical apparatus which initiates the shift from one to the other of two selectable elements in the automatic control unit. The two elements pertain specifically to particular magazines.

The linecasting and composing machine to which the invention has been particularly adapted includes a plurality of matrix storage magazines, which may be two or more. If the machine includes more than two magazines, the magazines are usually shiftable manually as a group to bring any two adjacent ones in predetermined relation to a shiftable matrix channel entrance. The matrix channel entrance is shift'able into matrix receiving relation to either of the two III magazines and is provided with slide bars which are always in operative relation to the single set of release reeds with which the machine is provided and which move into position, as the channel entrance is moved, to control the escapement mechanisms of the magazine with which the channel entrance is associated. The rocking of the matrix channel entrance from one to the other of its two positions is effected through a lever arm and link from a cam follower lever which has a follower member disposed in a channel cam. The channel is undulatory in contour and the cam is rotatable by engagement of a power driven pawl with a ratchet through a sufficient distance to move the cam follower from one extreme of the undulation of the channel to the other, thereby shifting the channel entrance from one to the other of its two positions. The pawl which operates the cam is oscillated by power mechanism controlled by a key lever, the pawl being oscillated through one cycle upon each depression of the key lever to effect advancement of the cam through one step.

According to the present invention an automatic control unit is associated with the linecasting and composing machine including mechanism for sensing signal combinations in a perforated tape and for selecting and actuating selectable members according to the signals sensed. The record sensing mechanism is provided with apparatus for arresting the advancement of the perforated tape for predetermined periods of time upon establishment of certain selective conditions, such as magazine shift, in order to allow time for matrices to escape entirely from the magazine and for release reeds to settle into normal position before a magazine shift operation is initiated.

Two of the selectable members are arranged to close electrical contacts, one contact pertaining to the presentation of the shiftable matrix channel entrance in association with one magazine and the other contact being associated with the presentation of the matrix channel entrance in co-operation with the other matrix storage magazine. An electromagnet is provided for controlling the power mechanism which the magazine shift key lever of the linecasting and composing machine controls, and a set of routing contacts is interposed between the electromagnet and the contacts controlled by the selectable members, for connecting the electromagnet to one or the other of the selector controlled contacts. A sh'iftable member forshifting the routing contacts to transfer the connection of the electromagnet is operated by the cam follower which shifts the matrix channel entrance. Thus the electromagnet cannot be operated repeatedly by successive closures of one of the selector controlled contacts, and the magazine shift mechanism cannot get out of step with the automatic control unit nor respond to any signal except that to present the shiftable matrix channel entrance in operative relation to a predetermined magazine. The electromagnet also operates a lever which closes a contact to complete a circuit for another electromagnet which operates to effect the disconnection of power from the automatic control unit to hold in abeyance all of its operations. The shiftable member which controls the routing contacts takes control of the contact for the stop magnet of the automatic control unit and holds those contacts closed until the shifting of the matrix channel entrance has been substantially completed, whereupon the contact opens and the stop magnet becomes de-energized to permit driving connection to be re-established to the automatic control unit, whereupon the sensing of the stored signals in the tape and the release of matrices proceeds.

For a full and complete understanding of the invention reference may be had to the following detailed description to be interpreted in the light of the accompanying drawings wherein:

Fig. 1 is a schematic perspective view of the tape sensing and selectable contact closing mechanism of an automatic control unit and of magazine shift control mechanism associated therewith in accordance with the present invention;

Fig. 2 is an elevational View partly in section and partly broken away showing the shiftable channel entrance mechanism of a linecasting and composing machine;

Fig. 3 is an elevational view partly in section and partly broken away showing the shiftable channel entrance operating mechanism of a linecasting and composing machine and also showing the selectably operable control mechanism for the shifting mechanism;

Fig. 4 is a perspective view showing the routing contact and stop magnet contact operating mechanism; and

Fig. 5 is an elevational view partly in section taken at the right of Fig. 3.

Referring now to the drawings and particularly to Fig. 1, the reference numeral designates an automatic control unit for a linecasting and composing machine which may be of the type disclosed in Patent No. 2,098,973 granted November 16, 1937, to A. H. Reiber. The automatic control unit includes a record reader mechanism for sensing the transverse rows of perforations in a control form or tape l2 and for intermittently advancing the control form l2 by means of the sprocket wheel l3 so as to present consecutively the transverse perforations to a position where they may be sensed cyclically by a set of feeler levers I4.

In the particular embodiment of the invention the apparatus has been arranged to accommodate a six-unit "code system so that accordingly there are six feeler levers M. An additional lever l6 generally similar to the levers |4 except that it is not provided with a tape sensing arm but only with the transfer projections I1 is supported intermediate the levers |4 upon a shaft l8. The tape feed sprocket I6 is mounted on a shaft l9 which also carries a ratchet wheel 2| that is rotated one tooth step at a time during the oscillational movement of lever 22 which carries the feed pawl 23, The tape feed lever 22 is pivoted at 24. Also pivoted at 24 is a cam follower lever 26 and a lever 21 which is secured to the lever 26 by screw 28. The cam follower lever 26 has extending therethrough an abutment screw 3|. The tape feed lever 22 has at its left-hand end a laterally extending platform portion 32 which is disposed beneath the lower end of abutment screw 3|. Cam follower lever 26 is biased in clockwise direction by spring 33 which engages the left-hand end of lever 21. Tape feed lever 22 is biased in clockwise direction by a spring (not shown) whereby its laterally extending platform portion 32 is urged into engagement with the lower end of abutment screw 3|. A follower roller 34 carried by the left-hand end of lever 26 engages a cam 36 which is secured to shaft 31 to be hereinafter identified as the record reader operating shaft. Since the pivotal center of lever 26 coincides with that of lever 22 the movement imparted to lever 26 by cam 36 is communicated to the laterally extending platform portion 32 of lever 22 by adjustable abutment screw 3|. When cam 36 rocks lever 26 and its extension lever 21 counterclockwise, lever 22 will also be rocked counterclockwise and when levers 26 and 21 are restored to extreme clockwise position by spring 33 the biasing spring (not shown) for lever 22 will also seek to return lever 22 to extreme clockwise position. It will be apparent that if lever 22 should be blocked in extreme counterclockwise position levers 26 and 21 may continue to oscillate about pivot 24 under the influence of cam 36 and spring 32. Under certain operating conditions of the apparatus tape feed lever 22 is blocked in extreme counterclockwise position and this condition will be described later.

A feed pawl 38 is pivoted at 39 to lever 21 and is arranged to engage the teeth of a ratchet wheel 4| when permitted to do so. Under ordinary conditions of operation the pawl 38 is withheld from engagement with ratchet 4| by a laterally extending pin 42 secured to one arm 43 of a cradle assembly 44 which also includes the transverse connecting member 46 and which is pivoted by opposed ears 41 upon trunnions 48 provided in the supporting structure.

Ratchet 4| is secured to a rock shaft 49 to which is also secured a ratchet 5|. A check pawl 52 is normally held disengaged from ratchet 5| by pawl 38. Shaft 49 has pivotally mounted thereon a rocker member 53 which is provided with a projection 54 disposed in the path of a pin 56 carried by ratchet 4|. Rocker member 53 is also provided with an upstanding arm 51 at the free end of which is an abutment screw 58. It will be apparent that as ratchet 4| is rocked counterclockwise by pawl 38 and is held in successive positions of advancement through the cooperation of check pawl 52 with ratchet 5|, pin 56 carried by ratchet 4| will engage arm 54 of rocker member 53 and will move the rocker member in counterclockwise direction. Screw 58 is in alignment with nontape sensing lever i6 and upon being brought into engagement with lever 6 will rock the lever to extreme clockwise position.

The condition under which pawl 38 is permitted to move into engagement with the ratchet 4| is that cradle 44 and its arm 42 be rocked in counterclockwise direction. This results in movement of pin 42 carried by arm 43 out of engagement with pawl 38, and pawls 38 and 52 move into engagement with their respective ratchets 4| and 5| As fully disclosed in the previously identified patent to Albert H. Reiber, the tape feed lever 22 is provided near its right-hand end with a depending arm (not shown) which arm 43 of cradle 44 blocks when the cradle is in extreme counterclockwise position, whereby lever 22 is held in extreme counterclockwise position as previously mentioned, and tape l2 remains stationary while cam 38 continues to rock levers 26 and. 21 to effect the advancement of ratchet 4|.

Below each of the levers l4 and IS a transfer lever 6| is pivotally carried by a transfer bail. Each transfer lever 6! is provided with spaced upstanding arms in such relation to the spaced depending arms I! of the levers l4 and I6 that when a transfer lever 5| is moved upwardly into engagement with a lever M or IE that is in extreme counterclockwise position, the transfer lever will be rocked in one direction, whereas when it is brought into engagement with a lever [4 or IE that is in extreme clockwise position it will be rocked in the other direction. A transfer bail lever 62 having a cam follower roller 63 engaging a cam 64 carried by shaft 31 cyclically lifts the transfer levers 6| to bring them into engagement with the lower ends I? of levers M and 5 whereby the transfer levers 6| are rocked into characteristic positions depending upon the permutational setting of tape sensing levers l4 and the position of lever i6 as determined by the ratchet feed mechanism comprising pawl 38, ratchet 4| and rocker member 53.

Each of the transfer levers 6| associated with the tape sensing levers I4 is articulated by a disc and notch connection to a code bar extension 66 and the transfer lever associated with the nontape sensing lever I6 is associated with an extension link 61 for a blocking bar. The code bar extension links 66 are individually connected to permutation code bars 68. In accordance with the presentation of the transfer levers 6| in extreme clockwise or counterclockwise position under control of the levers I 4 and IS the code bar extension links 86 and their code bars 68, the blocking bar extension link 61 and its blocking bar are presented in extreme right-hand or left-hand positions respectively. The blocking bar extension link 6'! is normally presented in extreme left-hand position and remains in that position until nontape sensing lever It has been shifted to extreme clockwise position by rocker member 53 and the transfer bail has brought the transfer levers 6| into co-operation with the levers l4 and It.

The code bar extension links 66 are provided with spaced depending arms 69 which have integral therewith or. secured thereto auxiliary permutation code bars II. The auxiliary code bars H may be notched permutationally along their lower edges and the notching may duplicate certain of the notchings of the code bars .68. The blocking bar extension link 6'! is also provided with depending arms which carry a bar 12, the function of which is to block certain of the selective conditions which the auxiliary code bars may be coded to establish.

The selectable elements controlled by the auxiliary code bars H are in the form of nested bails, of which bails 13 and 14 are examples, the bails being arranged for convenience in two groups.

A bail 76 which is positioned beyond the righthand ends of the auxiliary bars 1| and 12 is pivoted on the same pivot as the right-hand. group of bails and is provided with a forwardly ex-' Bail 16 has a rightwardly extending arm 19 v which is connected by link 8| to cradle 44. Upon the sensing by sensing levers I 4 of a code combination in tape l2 for selecting one or the other of the bails 13 or 14, which will also cause the selection of one of the bails 11 and 18, the transfer bail operates and through the transfer levers 6| positions the code bar extension links 66, the code bars 68 and the auxiliary code bars H in permutational setting corresponding to that of the tape sensing levers i4. Thereupon a cam 82 on a shaft'83 which is geared to shaft 3'! permits its follower lever 84 to rock in clockwise direction under the influence of biasing spring 86, thus lifting stripper bail 81 which in its lowermost position holds all of the selectable bails clear of the lower edges of the auxiliary code bars H, and upon being lifted permits the balls to move into engagement with the lower edges of the auxiliary code bars. According to the assumption that one or the other of the bails 11 and 78 is to be selected, an alignment of notches will be presented to that bail by the auxiliary code bars 1| so that the bail can enter the alignment of notches. The auxiliary code bars H will also present an alignment of notches to that one of the bails l3 and 14 which is responsive to the same code combination as that one of the bails l1 and 18 which is assumed to be selected, but the bail l3 or 14 will be blocked by the auxiliary blocking bar 12 and will be prevented from entering the alignment of notches. As it moves clockwise to enter the alignment of notches the selected ball 1! or 18 engages the forwardly extending portion of bail 16 and rocks that bail clockwise, thus rocking cradle 44 counterclockwise to move its arm 43 out of restraining engagement with the pawl 38 and into blocking relation to the tape feed lever 22 which at this time is in its uppermost position. A latch 88 engages the transverse connecting member 46 of cradle 44 and holds the cradle in extreme counterclockwise position. Thus, the feeding of tape I2 is arrested and the advancement of ratchet 4| is initiated.

For each rotation of shaft 37 ratchet 4| is advanced one step and the transfer bail is operated, but since the tape feeding lever is blocked the tape sensing levers l4 continue to sensethe same signal combination and no change is ef-' fected in the setting of the code bar extensions 66.. Stripper bail 81 is oscillated for each revolution .of shaft 37 but bail 16 is not under the control of stripper bail 81 and remains held in ex treme clockwise position due to the latching of cradle 44.

After the ratchet 4| has been actuated sufficiently to cause rocker member 53 to shift nonsensing lever 16 the transfer levers, upon the next operation of the transfer bail, find a different condition than previously encountered; namely, the clockwise presentation of lever Hi. This results in the shifting of blocking bar link 61 to its right-hand position. Immediately thereafter cam 82 permits stripper bail 81 .to rise and whereas that one of the bails 11 and 18 which initiated the operation of the ratchet 4| is now blocked, due to the presentation of the auxiliary blocking bar 12 in right-hand position, the bail 13 or 14 which had been blocked out of a full alignment of notches is now no longer blocked and enters the alignment of notches.

As fully disclosed in the hereinbefore identified patent, the blocking bar link 61 is provided with means for disengaging latch 88 from cradle 44. This permits the cradle to return to its extreme clockwise position out of blocking relation to tape feeding lever 22 so that tape feeding may be resumed. At the same time arm 43 of cradle 44 withdraws feed pawl 38 and check pawl 52 from engagement with ratchets 4| and respectively, and the ratchets are restored by a torsion spring to normal position. It will thusbe apparent that the bail 13 or 14 may be selected after a delayed interval depending upon thenumber of steps through which ratchet 4| rotates, the tape feeding mechanism being disabled during this interval.

Instead of providing for the selection of one of the two bails 11 and 18 in response to the code combination for the selection of the bail 13 and for the selection at the other of the two bails 11 and 18 in response to, the code combination for the selection of the bail 14, the auxiliary code bars 1| may be coded so as to select one only of the bails 11 and 1B in response to the codes for both of the bails 13 and 14. The manner in which this may be accomplished is fully disclosed in the patent to A. H. Reiber. With this arrangement the other of th bails 11 and 18 is made available for the initiation of tape feed arrestment and function selection delay in connection with some other function.

As shown in Fig. 1, each of the bails 13 and 14 is arranged to close a pair of contacts, those associated with bails 13 being designated by the reference numeral 9| and the other pair being designated 92. One contact of each of the contact pairs 9| and 92 is connected to battery 93. The other contact of the pair 9| is connected by conductor 94 to a routing contact 96 and the other contact of the pair 92 is connected by conductor 91 to routing contact 98.v A contact 99 is movable between the contact tongues 96 and 98 to engage one or the other of them under the control of the magazine shifting mechanism of the linecasting and composing machine, as will be described hereinafter. Contact tongue 99 is connected by conductor |0| to one terminal of the winding of a magazine shift initiating electromagnet I02, the other terminal of which is connected to ground.

When bail 13 is actuated after the delay inter val initiated by the bail 11 or 18 which is selectable in response to the same signal combination, contacts 9| are closed to connect battery 93 over conductor 94 to contact 96. If contact tongue 99 is then in engagement with contact 96 the battery circuit will be extended to electromagnet I02 which will become energized. However, if contact tongue 99 is then in engagement with contact 98 the closure of contacts 9| will be idle, as the circuit to electromagnet I02 cannot be completed through contact 96. Under these circumstances the only way to effect the energization of electromagnet I02 is to select bail 14 and close contacts 92. Thus, the routing contact tongue 99 determines which of the contacts 9| and 92 can effect energization of the electromagnet 102- Referring now to Fig. 2 the reference numerals I06 and I01 designate the upper and lower, respectively, of a pair of adjacent magazines'in a linecasting and composing machine. Below the foremost ends of the magazines I06 and I01 is pivotally mounted at I08 a matrix channel entrance member |09 which when it occupies its extreme clockwise position, which is the full line position shown in Fig. 2, registers with the lower magazine I01 and when in extreme counterclockwise position which is the dotted line position it registers. with the supplementary matrix guide III. Pivotally movable channel entrance member I09 is provided with slides I I2, the lower ends of which are in operative relation to the release reeds (not shown) of the linecasting and composing machine regardless'of which of the two positions the channel entrance member I09 occupies. The upper ends of the-slides 2 cooperate with the escapements for the. particular magazine with which pivoted channel entrance member I09 co-operates' The pivotal mounting of channel entrance member I09 upon pivot I08 is by means of forwardly extending arms I I3 and in invariable relation to one of the arms II3, whether by being secured thereto or by being fixed to pivot shaft I00 and having the arms II3 also fixed to shaft I00, is a rearwardly extending arm I I4 from which pivotally depends a link I I6.

As shown in Fig. 3 the lower end of link I I6 is pivotally connected to the foremost end (lefthand end) of a cam follower lever I|1 pivoted at II8. At its right-hand end, as viewed in Fig. 3, the cam follower lever 1 supports a roller |2| which is disposed in a cam groove I I9 in the side of a cam member I22. The cam groove 9 has four points of maximum distance from the center of the cam and between each two such points is a point of minimum radius so that upon each one-eighth revolution the cam follower lever 1 will be rocked from one to the other of its two extreme positions. Thus, in Fig. 3 the cam follower lever I I1 is shown in extreme counterclockwise position, link H6 is in its lowermost position, and in Fig. 2 the shiftable channel entrance member I09 is shown in full line position in registry with the lower magazine I01. Upon rotation of cam I22 one-eighth of a revolution cam follower lever 1 will be rocked to extreme clockwise position, link III; will be lifted to its uppermost position, and shiftable channel entrance 'member I09 will be rocked to its dotted line position, Fig. 2. Upon the next one-eighth revolution of cam I22. the cam follower lever H1 and link I|6 will be restored to the position shown in the drawings and the shiftable channel entrance I09 will be restored to the full line position.

Rotation inone-eighth revolution steps is imparted to cam I22 by a rocker plate I23 pivoted upon shaft I24 to which cam I22 is secured. Rocker plate I23 has pivoted thereon a pawl I26 which is urged by spring I21 into engagement with ratchet I28 secured to shaft I24. Rocker plate I23 has secured thereto an adjustable abutment member I29 by which rocking movement may be imparted to rocker plate I23 as will presently appear.

The linecasting and composing machine is provided with a lever I3I which may be rocked in clockwise direction, as viewed in Fig. 3, by a manually operated key lever (not shown) or by abutment screw I32 carried at the end of arm I33 of armature lever I34 of the electromagnet I 62. Lever I3I is pivoted at I36 and is engaged by the lower end of a reciprocable rod I31. At its upper end rod I31 is articulated to trigger lever I38 which normally supports the righthand end, as viewed in Fig. 3, of a yoke I39 pivoted at I4I. Yoke I39 rotatably supports a keyboard cam or eccentric I42. 'Below the cam I42 is a rubber roller I43 which is continuously rotated by pulley I44 driven by belt I46.

In the normal condition of the apparatus described in the foregoing paragraph, trigger lever I 38 holds cam yoke I39 in extreme counterclockwise position, in which position cam I42 is held clear of rubber roller I43. In this position a reciprocable rod I41 rests or substantially rests upon yoke I39 and its upper end engages member I29 of rocker plate I23 or fails to engage it by a reasonable clearance but is substantially in coaxial alignment with it. Upon the rocking of lever I3I in clockwise direction rod I31 is lifted vertically to rock trigger I38 out ofsupporting relation to yoke I39 thereby permitting cam I42 to drop into engagement with rubber roller I43. The point of the periphery of cam I42 which first engages rubber roller I43 is substantially the point of minimum radius, and. as roller I43 imparts rotation to cam I42 due to frictional engagement therewith, yoke I39 is rocked counterclockwise, thus moving reciprocable rod I41 upwardly, the rod in turn engaging abutment member I29 of rocker plate I23 and rotating ratchet I28 and cam I22 in clockwise direction. When rubber roller I43 has rotated cam I42 sufficiently to rock the yoke I39 to its extreme counterclockwise position, the yoke has imparted oneeighth revolution to cam I22 and the right-hand end of the yoke has been brought well above the free end of the upstanding arm of trigger lever I38. If lever I3I has been permitted to return to its extreme counterclockwise position during the rotation of cam I42 trigger lever I38 will have returned to normal position where it can arrest yoke I39 as it moves clockwise to its normal position which is the position shown in Fig. 3.

For accurate determination of the stop position of cam member I22, pawls I48 and I49 are provided. Pawl I48 is in the nature of a spring biased jockey or detent pawl and it determines the rest positions of cam member I22. It is merely cammed out of engagement with any one of the eight notches I in cam member I22 as the cam member is rotated by rocker plate I23. Pawl I49 is fixed to rock shaft I52 which also has secured thereto an arm I53 connected by link I54 to reciprocable rod I31. Pawl I49 is provided with a yieldable pivoted head I56 which may yield slightly as the head I56 enters a notch I5I at the end of a cam feeding operation, thus avoiding sudden arrestment of cam member I22. Biasing spring I51 for pawl head I56 restores the head to normal relative to pawl I49 if cam-member I22 has overtraveled slightly, thus aiding detent pawl I48 to determin the exact positionin which cam member I22 shall remain after being operated. By virtue of the association of pawl I39 with lever I3I through rockshaft I52, arm I53 and link I54, the lever I3I not only trips trigger lever I38 but also withdraws pawl I49 from engagement with a notch I5I of cam member I22, thus freeing the cam for rotation.

It will be apparent from the foregoing that since lever I3I is operated by arm I33 of armature lever I 34 of electromagnet I82, which in turn is energized through contacts 9I or 92, the cam member I22 will be rotated one-eighth revolution in response to operation of the proper contact 9I or 92 as determined by the routing contact 99. Armature lever I34 has secured thereto the armature I51 and is also provided with an arm I58 which carries at its free end abutment screw I59. Referring now to Figs. 3 and 4 it will be observed that abutment screw I59 operatively engages depending arm I6I of a bell crank lever I62. .Bell crank I62 is pivoted at I63 and has the free end of its other arm I64 disposed under a pin I66 extending laterally from the free end of one of the arms I61 of a bell crank lever I68, the other arm I69 of which engages one of a pair of contacts I1 I. Co-operating with the bell crank lever I62 there is a latching lever I13 pivoted at I14 and spring biased to engage bell crank I62. Latch lever I13 is undercut at I12 to provide .a shoulder, and when bell crank I62 is rocked counterclockwise as viewed in Fig. 3 by armature lever arm I58 to impart clockwise movement to bell crank lever I68 through pin I 66 and thus to close contacts I1I, shoulder I12 moves into the path'of the right-hand side of hell crank I62 and prevents the bell crank from returning to normal position after magnet I02 becomes deenergized. Thus, a lock is provided to hold the contacts I1I closed.

Referring now to Fig. 1 it will be seen thatone of the contacts I1! is connected to conductor I15 which extends to battery 93 and that the other of the contacts I1I is connected by conductor I16 to one end of the winding of an electromagnet I11, the other end of which is connected to ground. Magnet I11 has an armature I18 carried by an armature lever I19 connected by link I88 to bell crank I8I. Bell crank I8I is pivoted on shaft I32 which also pivotally supports clutch disengaging lever I83 for clutch I84 through which rotation is imparted from gear I86 to shaft 31. When magnet I11 becomes energized and attracts its armature I18, bell crank I8I is rocked clockwiseas viewed in Fig. 1

to. rock clutch disengaging lever I83 in the same direction to effect disengagement of the driven element of clutch I84 from the driving element, 1

whereby shaft 31 is arrested. Spring I81 opposes the presentation of clutch disengaging lever I83 in position to arrest shaft 31, but magnet I 11 overcomes spring I81. However, when magnet I 11 becomes ole-energized due to the separation of contacts I1I, spring I81 retracts clutch disengaging lever I83 to ineffective position, whereby the elements comprising clutch I 64 are permitted to re-engage and shaft 31 is restarted. Since the closure of contacts IN is effected by armature lever I34 of electromagnet I62 which also operates lever I3I to initiate an operation of cam member I22 to effect shifting of matrix channel entrance member from one to the other of its two positions, it will be apparent that shaft 31 will be arrested simultaneously with the initiation of the operation which effects thefeeding of cam member I12. The purpose of such arrestment is to prevent the sensing of matrix releasing combinations in tape I2 and the initiation, through code bars 68 (Fig. 1), of matrix releasing operations while the channel entrance member I89 is being shifted from one to the other of its two positions.

As shown in Figs. 3 and 4, a routing contact and record reader arresting control member I88 is slidably supported upon the pivot pin I63 and upon pin I 89 by slots I9I. At its left-handend', as viewed in Fig. 3, slide member I88 is provided with an aperture in which is disposed a laterally extending pin I92 carried by the depending arm of a cam follower bell crank I93 pivoted at I94 and having the free end of its upper arm slotted to engage the pin by which. cam follower roller I2I is carried upon cam follower lever II1. With the cam follower lever H1 in the position shown in Fig. 3, lever I93 is in its extreme counterclockwise position and slide member I88 is in its extreme right-hand position. When cam member I22 is rotated oneeighth revolution to rock cam follower lever II1 to extreme clockwise position cam follower lever I93 is also rocked to extreme clockwise position and slide member I80 is shifted to its left-hand position.

On its upper edge the slide member I88 is provided with a cam projection l96 which moves from one side to the other of the left-hand end of arm I61-of bell. crank I68 as slide member I88 moves from one to the other of its two positions. The purpose of cam projection I96 is to hold bell crank I68 in its extreme clockwise position, as viewed in Fig. 3 (counterclockwise position as viewed in Fig. 4) whereby to assume control of bell crank I66 immediately after slide I88 begins to move and to relinquish control over bell crank I68 just before slide I88 comes to rest. Slide member I88 is provided on its lower edge with a cam projection I91 which moves from one side to the other of a pin I98 carried by latch I13 as slide I88 moves from one to the other of its two positions. The function of cam projection I91 is to rock latch I13 in clockwise direction sufficiently to free bell crank I62 from shoulder I12 of latch I13. Thus, bell crank I62 is relieved of control over bell crank I68 and the contacts I1I, but by the time that latch I13 has been disabled the cam projection I96 on the upper edge of 'slide member I88 has assumed control of bell crank I68 and prevents magnet I11 (Fig. 1) from becomingde-energized until slide member I88 has reached substantially the limit of its travel, at which time the shifting of matrix chanel entrance member I09 has been substantially completed and the linecasting and composing machine is in condition to accommodate matrix release operation so that the restarting of record reader shaft 31 is proper.

The slide member I88 is also provided at its lower edge, near the right-hand end thereof, as viewed in Fig. 3, with a pair of fingers I99 and 2M disposed respectively at the left and righthand sides of routing contact tongue 99. When slide member I88 is presented in its right-hand position, which is the position shown in Fig. 3, finger I99 holds the routing contact tongue in its extreme right-hand position, or as viewed in Fig. 1, in its lefthand position in engagement with contact 96. When slide member I88 is moved to its left-hand position, as viewed in Fig. 3, finger I99 moves out of engagement with routing tongue I99 and finger 20I moves into engagement with it and shifts the contact tongue to its extreme left-hand position, or as viewed in Fig. 1, to its right-hand position in engagement with contact 98.

From the foregoing it will be apparent that th mechanism which effects the shifting of the matrix channel entrance member I09, namely, the cam member I22, controls the shifting of the routing contact tongue 99. If the auxiliary code bars 1| are set in accordance with a magazine shift signal which is identical with the last previous magazine shift signal, and. select that one of the bails 13 and 14 which was last operated, the magnet I02 will not become energized because the circuit to it is open at the routing contact tongue 99, having previously been opened by the slidable member I88 when the cam member I22 was last operated. Therefore, neither the lever I3I nor the bell crank I62 which controls the contacts I1I will be operated, and a magazine shift operation will not be initiated, nor will the record reader shaft 31 be arrested. Should the apparatus not include the routing contact tongu 99 and the fingers I99 and 20I carried by slidable member I88, the magazine shift initiating magnet I02 would respond to every magazine shift signal of either type and the second of two successive identical magazine shift signals would cause the matrix channel member I09 to shift from the position corresponding to the first of the two identical signals to a position corresponding, not to the second of the two identical magazine signals, but to the position corresponding to the other different magazine shift signal. The magazine shift mechanism comprising the cam I22 and the matrix channel entrance member I09 would then be out of step with the selector mechanism shown in Fig. l, and the magazine selection would thereafter be crossed or. reversed until brought into correct relation by another magazine shift signal identical with the two or by two successive ones of the different type of magazinesignal.

It will also be apparent that while the record reader shaft 31 is not arrested when the bail 16 is operated by one of the bails 11 and. 18 but continu'esto operate to effect feeding of the ratchet MI, and incidentally, idle repeated sensing of the signal combination presented to the sensing levers. I4 due to blocking of the'tape feeding mechanism by arm 43 of bail 46, upon the energization of magnet I02 in response to the closure of the 'correct ones of the contacts 9| and 92' relative to the position of routing contact tongue 99 th clutch I84 becomes disengaged by operation of magnet I11, initially under the control of bell crank I62, and thereafter under the control of slidable member I88, and remains arrested, interrupting all tape feeding, tape sens ing and signal transferring operations, until the shifting of matrix channel entrance member I09 is substantiall completed. The'first delay or interruption of matrix release operations which results from the selection of bail 16 affords an interval inwhich any matrices then in process of being released may fall clear of the magazines I06 and I01 and of the matrix channel entrance member I09, so that they shall notinterfere with the shifting of the channel entrance member I09 and so that matrix releasereeds involved in'the releaseof such matrices may settle to their normal position and permit the matrix release slides II2 to settle so that they will not interfere with the shifting of matrix channel entrance member I09. The interruption in matrix releasing operations afforded by theoperation of magnet I11 and the disengagement of clutch I84 insures that no attempt shall be made by the selector mechanisms to initiate a matrix release operation while the channel entrance member I09 is being shifted and until it has reached a restposition. I

Although av specific embodiment of the invention has been shown in the drawings and described in the accompanying specification, it is to be understood that the invention is not limited to such specific embodiment but is capable of modification and rearrangement Without departing from the spirit of the invention and within the scope of the appended claims.

What is claimed is:

1. In a linecasting and composing machine having a plurality of matrix storage magazines and a shiftable matrix releasing and receiving device for co-operation with said magazines individually, a cam for shifting said device, means for drivin said cam, means for establishing an operative connection between said driving means and said cam, means for operating said connection establishing means, a plurality of selectable means for controlling said operatin means, signal responsive means for selecting said selectable means individually, means controlled by said cam trolling means, means also controlled by said conmembers for controlling said operation initiating means, selector means for selecting said selectable members individually, stored signal sensing means for controlling said selector means, means for presenting stored signals successively to said sensfor qualifying alternatively said selectable means to control said operating means, and means controlled jointly by said operating means and said qualifying means for arresting said signal responsive means to accommodate the shifting of said shi'ftable device.

2. In a linecasting and composing machine having a plurality of matrix storage magazines and a shiftable matrix releasing and receiving device for co-operation with said magazines individually, a, cam for shifting said device, means for driving said cam, means for establishing an operative connection between said driving means and said cam, means for operating said connection establishing means, selectable means for controlling said operating means, signal responsive means for selecting said selectable means, and means controlled by said operating means for arresting said signal responsive means to accommodate the shifting of said shiftable device.

3. In a linecasting and composing machine, a plurality of matrix storage magazines, a shiftable matrix releasing device for co-ope'ration with said magazines individually, means for shifting said device, means for driving said shifting means, means for establishing an operative connection between said driving means and said shifting means, means for operating said connection establishing means, selectable means for controlling said operating means, signal responsive means for selecting said selectable means, means controlled by said operating means for arresting said signal responsive means, and means for prolonging the arrestment of said signal responsive means to accommodate the shifting of said shiftable device.

4. In a linecasting and composing machine, a plurality of matrix storage magazines, a shiftable matrix releasing device for co-operation with said magazines individually, means for shifting said device, means for driving said shifting means, means for controlling said driving means, means for operating said controlling means, signal responsive means for selecting said operating means, means also controlled by said operating means for arresting said signal responsive means, and means for prolonging the arrestment of said signal responsive means to accommodate the shifting of said shiftable device.

5. In a linecasting and composing machine, a plurality of matrix storage magazines, a shiftable matrix releasing device for co-operation with said magazines individually, means for shifting said device, means for controlling said shifting means, signal responsive means for selecting said coning means, means -responsive to the signals assigned to said'selectable members for interrupting said signal presenting means, means for transferring the control over said operation initiating means from one to the other of said selectable members, means operated by said magazine selecting means for controlling said transferring means, and means associated with the last mentioned means for determining the restarting of said signal presenting means to accommodate the selection of a magazine.

'7. In a linecasting and composing machine having a plurality of matrix storage magazines to be rendered efiective selectively, means for selecting the magazines individually, power actuated means for operating said magazine selecting means, means for initiating the operation of said power actuated means, a plurality of selectable members for controlling said operation initiating means, signal responsive means for selecting said selectable members individually, means for presenting stored signals successively to said signal responsive means, means responsive to the signals assigned to said selectable members for interrupting said signal presenting means, means controlled by said operation initiating means for arresting said signal responsive means, means for transferring the control over said operation initiating means from one to the other of said selectable members, means operated by said magazine selecting means for controlling said transferring means, and means associated with the last mentioned means for determining the restarting of said signal presenting means and said signal responsive means to accommodate the selection of a magazine.

8. In a linecasting and composing machine having a plurality of matrix storage magazines to be rendered efiective selectively, means for selecting the magazines individually, power actuated means for operating said magazine selecting means, means for initiating the operation of said power actuated means, a plurality of selectable members for controlling said operation initiating means, signal responsive means for selecting said selectable members individually, means controlled by said operation initiating means for arresting said signal responsive means, means for transferring the control over said operation initiating means from one to the other of said selectable members, means operated by said magazine selecting means for controlling said transferring means, and means associated with the last mentioned means for determining the restarting of said signal responsive means to accommodate the selection of a magazine.

9. In a linecasting and composing machine having a plurality of matrix storage magazines to be rendered effective selectively, means for selecting the magazines individually, power actuated means for operating said magazine selecting means, means for initiating the operation of said power actuated means, a plurality of selectable members for controlling said operation initiating means, signal responsive means for selecting said selectable members individually, means controlled by said operation initiating means for arresting said signal responsive means, and means controlled by said magazine selecting means for transferring the control over said operation initiating means from one to the other of said selectable members.

10. In a linecasting and composing machine having a plurality of matrix storage magazines to be rendered efiective selectively, means for selecting the magazines individually, an electromagnetic means for controlling the operation of said magazine selecting means, a plurality of selectable members for controlling said electromagnetic means, signal responsive means for selecting said selectable members individually, and means controlled by said magazine selecting means for transferring the control over said electromagnetic means from one to the other of said selectable members.

11. In an automatic control device, signal presenting means, selector means responsive to presented signals, means controlled by said selector means for interrupting the signal presenting means, means also controlled by said selector means for initiating operations, means also controlled by said selector means and operable as an incident to the control of said operation initiating means for conditioning said signal presenting means to be restarted, and means controlled by said operationinitiating means for disabling said selector means and said signal presenting means to accommodate the initiated operation.

12. In an automatic control device, signal presenting means, selector means responsive to presented signals, means controlled by said selector means for interrupting the signal presenting means, means also controlled by said selector means for initiating operations, means also controlled by said selector means and operable as an incident to the control of said operation initiating means for conditioning said signal presenting means to be restarted, means controlled by said operation initiating means for disabling said selector means and said signal presenting means to accommodate the initiated operation, and means operable as an incident to completion of the initiated operation for restarting said signal presenting means and said selector mechanism.

MAURUS T. GOETZ. 

